Deterministic Methods Of Seismic Source Identification
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Deterministic Methods Of Seismic Source Identification
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Author : Charles B. Archambeau
language : en
Publisher:
Release Date : 1983
Deterministic Methods Of Seismic Source Identification written by Charles B. Archambeau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
In this report, we describe specific research results in: (1) The theoretical basis for seismic event discrimination and for the inference of physical parameters describing seismic sources; (2) Observations of body wave magnitude residuals in the U.S. and Southern Canada and the implications for yield estimation at non-U.S. and/or U.S. test sites; (3) Inferences of magnitude-yield relationships for both U.S. and U.S.S.R. test areas, with applications of these relations to U.S. and Russian nuclear test observations, to obtain new yield estimates; (4) Studies of a variety of physical situations which would produce seismic observations for an earthquake making it appear anomalous (i.e., explosion-like) when viewed from the perspective of standard discrimination methods, and similarly physical situations were described for which explosions could appear earthquake-like, and which could also lead to large yield estimate errors.
Identification Of Seismic Sources Earthquake Or Underground Explosion
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Author : Eystein S. Husebye
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Identification Of Seismic Sources Earthquake Or Underground Explosion written by Eystein S. Husebye and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The subject of this NATO Advanced Study Institute was seismic monitoring under a nuclear test ban - an application of scienti fic knowledge and modern technology for a political purpose. The international political objective of a comprehensive nuclear test ban provided in turn the motivation for our technical and scientific discussions. In order to obtain a historical perspec tive on the progress of the work towards a comprehensive test-ban treaty (CTB), it is necessary to go back to 1958, when a confer ence of scientific experts in Geneva made the first steps toward an international seismic monitoring system. However, agreement on actual capabilities of a monitoring system for verifying compliance with such a treaty was not achieved, and thus the conference did not lead to immediate political results. After the Partial Test Ban Treaty of 1963, which banned nuclear explosions in the atmosphere, outer space and under the seas, renewed interest in the seismological verification of a CTB took place. A number of countries initiated large-scale research efforts toward detecting and identifying underground nuclear explosions, and it was in this context that the large aperture seismic arrays NORSAR and LASA were established. This type of development resulted in excellent seismic data in digital form and was thus of great irnprotance to the seismological com munity.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1983
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Aeronautics categories.
Seismic Hazard Assessment In Thailand Using Probabilistic And Deterministic Methods
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Author :
language : en
Publisher:
Release Date : 2009
Seismic Hazard Assessment In Thailand Using Probabilistic And Deterministic Methods written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Earthquake hazard analysis categories.
In this study, the seismic hazards (SHA) in Thailand are analyzed. Fifty-five possible active fault zones identified from remote-sensing and out of those twenty-one seismic source zones are recognized to be the earthquake sources. The earthquake potential parameters used for SHA are derived from both active fault and earthquake catalogues. The strong ground-motion attenuation models are selected by comparison of the application of several candidate models with strong ground-motion data recorded in Thailand. Both deterministic (DSHA) and probabilistic (PSHA) approaches are employed in this SHA. For Thailand, there are seismic hazards in areas dominated by active fault zones such as northern, western, and southern Thailand. The DSHA map reveals seismic hazard around 0g-0.8g. In PSHA, the PGA values for 50 year in these areas are around 0.5g and 1g for 10% and 2% probability of exceedance, respectively. For Myanmar and Nicobar Islands the PSHA up to 3g in case of 2% probability of exceedance in 50 year according to the Sumatra-Andaman Subduction Zone. Comparing with the previous works the SHA of this study are higher than those proposed previously. However, this SHA compatible with the past ground shaking reported in the literatures. The SHA presented here is an important step toward an accurate evaluation of seismic hazard in Thailand. Further work is needed to refine the analysis. More observations of ground motion in the region are needed and further paleo-seismological study should be encouraged.
Seismic Design Guidelines For Port Structures
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Author : International Navigation Association Brussels
language : en
Publisher: CRC Press
Release Date : 2002-01-01
Seismic Design Guidelines For Port Structures written by International Navigation Association Brussels and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-01 with Technology & Engineering categories.
For the first time, international guidelines for seismic design of port structures have been compiled in this comprehensive book. These guidelines address the limitations inherent in conventional design, and establish the framework for an evolutionary design strategy based on seismic response and performance requirements. The provisions reflect the diverse nature of port facilities throughout the world, where the required functions of port structures, economic and social environment, and seismic activities may differ from region to region. This book comprises a main text and eight technical commentaries. The main text introduces the reader to basic earthquake engineering concepts and a strategy for performance-based design, while the technical commentaries illustrate specific aspects of seismic analysis and design, and provide examples of various applications of the guidelines. Proven simplified methods and state-of-the-art analysis procedures have been carefully selected and integrated in the guidelines in order to provide a flexible and consistent methodology for the seismic design of port facilities.
Abatement Of Seismic Hazards To Lifelines Papers On Gas And Liquid Fuel Lifelines And Special Workshop Presentations
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Author :
language : en
Publisher:
Release Date : 1987
Abatement Of Seismic Hazards To Lifelines Papers On Gas And Liquid Fuel Lifelines And Special Workshop Presentations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Buildings categories.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1993
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Power resources categories.
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date : 1980
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Science categories.
Seismogeodetic Methods For Earthquake And Tsunami Warning And Response
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Author : Dara Elyse Goldberg
language : en
Publisher:
Release Date : 2018
Seismogeodetic Methods For Earthquake And Tsunami Warning And Response written by Dara Elyse Goldberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
This dissertation presents a series of algorithms and plans for implementation of a prototype earthquake early warning system by merging two seismic observation tools: strong motion accelerometers and Global Navigation Satellite Systems (GNSS). The seismogeodetic approach, that which optimally merges these disparate data types, allows a reliable estimation of the earthquake source for early warning procedures from event detection to magnitude estimation and higher order products. We address implementation of this system in a real-time, automated environment, designed to operate without manual oversight. We assess the capabilities of low-cost micro-electro-mechanical systems (MEMS) accelerometers merged with observatory-grade GNSS for seismic P-wave detection, and suggest statistical methods to determine whether P-wave detections are consistent between stations, which allows for the automated removal of poor quality detections to avoid propagating these errors to higher order warning products. In line with these goals, we demonstrate how seismogeodetic observations contribute to our view of initial rupture dynamics of large earthquakes. We address an open question in seismology regarding the deterministic nature of earthquakes, assessing how early it is possible to fully characterize the source parameters of large, damaging earthquakes. Our seismogeodetic observations suggest that final earthquake magnitude is not discernable from the first few seconds of observation and therefore the earthquake rupture process is not strongly deterministic. We further investigate the complete temporal evolution of seismic moment release to identify the earliest magnitude-dependent features in our observational dataset. We create synthetic rupture models to identify the physical basis responsible for the timing of observed magnitude-dependent qualities. Our findings suggest that earthquake magnitude can be estimated prior to rupture completion, consistent with a weakly deterministic rupture process. These results provide new insights into the best practices for early warning and rapid response, and suggest limitations on the timeliness of earthquake source characterization. Finally, we turn to the built environment to demonstrate the applicability of these multi-instrument sensors to long-term structural health and seismic monitoring, to bolster earthquake and other natural hazard response practices. We describe efforts to characterize local buildings by creating a baseline model for the healthy structure and propose methods by which structural health can be evaluated over time or following a major seismic event to assess building safety without the need for manual inspection. We again assess the capabilities of low-cost MEMS accelerometers and describe the limitations of this lower-quality instrumentation for structural monitoring applications.
Advances In Indian Earthquake Engineering And Seismology
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Author : M. L. Sharma
language : en
Publisher: Springer
Release Date : 2018-06-22
Advances In Indian Earthquake Engineering And Seismology written by M. L. Sharma and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-22 with Nature categories.
This edited volume is an up-to-date guide for students, policy makers and engineers on earthquake engineering, including methods and technologies for seismic hazard detection and mitigation. The book was written in honour of the late Professor Jai Krishna, who was a pioneer in teaching and research in the field of earthquake engineering in India during his decades-long work at the University of Roorkee (now the Indian Institute of Technology Roorkee). The book comprehensively covers the historical development of earthquake engineering in India, and uses this background knowledge to address the need for current advances in earthquake engineering, especially in developing countries. After discussing the history and growth of earthquake engineering in India from the past 50 years, the book addresses the present status of earthquake engineering in regards to the seismic resistant designs of bridges, buildings, railways, and other infrastructures. Specific topics include response spectrum superposition methods, design philosophy, system identification approaches, retaining walls, and shallow foundations. Readers will learn about developments in earthquake engineering over the past 50 years, and how new methods and technologies can be applied towards seismic risk and hazard identification and mitigation.